Nut-lock.



PATBNTED FEB. 13, 1906.

No. 812,429. f

.` KOCH.

NUT LOCK.

10N ILBD AUG.16.1904

lIo

UNITED STATES PATENT UFFICE..

Specification of Letters Patent.

Patented Feb. 13, 1906.

Application led August 16, 1904. Serial No. 220,938.

T0 @ZZ whom it may concern:

Be it known that I, JAMES W. KOCH, a citizen of the United States, residing at Reynolds, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Nut-Locks, of which the following is a speciiication.

My invention relates to certain new and useful improvements in bolt'and nut locks in which means is provided for securing the nut and bolt together.

The invention also includes certain details of construction and arrangement of parts, all of which will be lirst described in detail and then specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which- Figure l is a perspective view of a portion of a railjoint with my invention applied. Fig. 2 is a cross-section thereof on the line 2 2 of Fig. l. Fig. 3 is a detail perspective view of the bolt. Fig. 4 is a similar view of the nut. Fig. 5 is a rear elevation of the nut.

Referring now to the accompanying drawings, in which like numerals of reference indicate like parts in all the figures, l designates the bolt, which may be of the ordinary construction and which is provided with the usual head la and a shank lb, which shank lb is threaded, as at le, to receive the nut 2. The nut 2 may be of any shape or form desired, either square, hexagonal, or octagonal, and the said nut 2 conslsts of a nut portion proper, 2a, which has a threaded axial bore 2b for cooperating with the threaded portion lC of the bolt-shank lb. Extending in a direction parallel to the bolt l and from the rear face 2C of the nut 2 is an inte rally-formed ring or washer member 2d, w ose internal bore 2e is of greater diameter than the threaded bore 2b to prevent mashing or upsetting the threads of the bore should the ring become mashed at any time and whose external diameter is less than the diameter of the nut. The fish-plate 3 has a circular bore 3a to receive the ring 2d, as shown in the drawings.

4 designates a bore which extends diametrically through the nut proper, 2, and the said bore coperates with the similarly-located bore 5 of the bolt l, through which bores 4 and 5 the key 6, of wire or other suitable material, is adapted to pass. The bore.

4 extends from one face 4X of the nut to the diametrically opposite face 4y and merges with supplemental grooves 4a 4a in the said nut-faces. These grooves 4a 4a in the form of my invention shown in Fig. l, extend parallel to the axis of the bolt and are adapted to receive the bent-over ends 6a 6a of the key 6.

By reference to the drawings it will be seen the bolt l is passed through the plates 3 3 and the rail 7, after which the nut 2 is screwed home. The key 6 is then inserted through the bolt and nut bores, and the ends 6a 6a ol the said key 6 are bent at right angles to lie in the grooves 4a 4 flush with the nut-face.

From the foregoing description, taken in connection with the accompanying drawings, it is thought the complete operation and advantages of my invention will be readily understood by those skilled in the art to which it appertains, and I desire it understood that slight changes in the detailed construction and arrangement of parts may be made without departing from the scope of the appended claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. Adevice of the character described,comprisingin combination with a bolt having a threaded shank provided with a bore, a nut, said nut having a bore for cooperating with the Ybore in the bolt, and having grooves merging with said nut-boreat its ends, and a wire key passing through said bore and adapted to have its ends bent over into said grooves,

vand a ring integrally formed with said nut,

said ring having a larger internal diameter than the nut axial bore and a lesser external diameter than the diameter of the nut, for the purposes described.

2. In combination with a rail and the lishplates having alining apertures, a bolt passing therethrough, one of said fish-plates having countersunk portions at the nut-receiving end of the bolt, a nut having a threaded engagement with said bolt, a ring integrally formed with the nut projecting Jfrom the rear face thereof, the internal diameter of said ring being greater than the diameter of the threaded portion of the nut, and the external diameter ofthe ring being less than the diameter of the nut, said ring adapted to seat in IOO the countersunk portionof the {ish-plate, said its ends bent over into thevnut-grooves to nut and said bolt having alining apertures, look the nut and bolt together substantially the apertures of the nut extending diametas shown and described.

rioally therethrough, said nut having grooves JAMES W. KOCH. on its opposite faces merging with the aper- Witnesses: tures of the nut and a key adapted to pass C. F. SHINDEL,

through said nut and bolt apertures and have GEO. SoHNAUsH. 

